Our Pega is the following three.

• pega web
• pega batch
• pega stream

These are launched in a container on self-managed cloud. The image contained in the repository named docker.io/pegasystems/tomcat:9-jdk11 used to create the image used to launch the container is base image. https://hub.docker.com/r/pegasystems/tomcat

Please let me know if the following 3 parameters can be tuned. I am concerned about whether the change will adversely affect the behavior of the application.

(1) Servlet container system property: org.apache.catalina.STRICT_SERVLET_COMPLIANCE can be set to true?

https://tomcat.apache.org/tomcat-9.0-doc/config/systemprops.html Currently not set. It works the same as false.

setting destination

•  $CATALINA_HOME/bin/setenv.sh

(2) Servlet container system property: org.apache.catalina.RECYCLE_FACADES can be set to true?

https://tomcat.apache.org/tomcat-9.0-doc/config/systemprops.html

Currently not set. It works the same as false.

setting destination

• $CATALINA_HOME/bin/setenv.sh

(3) Connector attributes: server

https://tomcat.apache.org/tomcat-9.0-doc/config/http.html#Standard_Implementation

Currently not set. 

• setting destination: $CATALINA_HOME/conf/server.xml > element: Connector > attribute: server 
• value: ""

Regards.